Suburban forest patches have high functional and phylogenetic diversity in bird communities

Gabriela Franzoi Dri1,2, Carla Suertegaray Fontana1,3, Cristian de Sales Dambros1
1Programa de Pós-Graduação em Bioaffiliationersidade Animal, Departamento de Ecologia e Evolução, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil
2Department of Wildlife, Fisheries, and Conservation Biology, University of Maine, Orono, USA
3Laboratório de Ecologia de Comunidades e Populações, Centro de Ecologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil

Tóm tắt

The fast conversion of natural habitats into cities is a worldwide environmental change, negatively affecting ecosystem processes and functioning. Understanding how changes in taxonomic richness and composition are associated with the reduction in functional traits and evolutionary history in different levels of urbanization is important to minimize the impacts of urban landscapes on ecological communities. We investigated the effect of anthropogenic predictors on taxonomic, functional, and phylogenetic diversity of bird communities along the urbanization gradient of a South American city. We surveyed birds and collected data on patch size, isolation, and noise from 43 patches classified as natural (n = 13), suburban (n = 22), and urban (n = 8). We analyzed how anthropogenic factors affect patch diversity (richness) and composition (similarity among patches) in terms of taxonomic, functional, and phylogenetic diversities. We found that suburban patches had higher functional richness and that these patches had species and phylogenetic history that are typically present either in urban or natural areas. Further, we found that noise reduced taxonomic and phylogenetic richness, contributing to changes in species composition and diversity loss in highly urbanized patches. Although some species can be highly sensitive to human impacts, suburbs have less intense anthropogenic activities (e.g. traffic) maintaining higher functional diversity and likely ecosystem functioning than urban areas. Our results suggest that cities can protect biodiversity if we reduce urban noise and maintain green areas, as commonly observed in the suburbs.

Tài liệu tham khảo

Baselga A, Orme D, Villéger S, Bortoli J, Leprieur F (2018) Betapart: Partitionin Beta Diversity into Turnover and Nestedness Components. R package version 1.5.1. Retrieved from http://CRAN.R-project.org/package=betapart

Bibby CJ, Burgess ND, Hill DA (1992) Bird Census techniques. Cambridge University Press, Cambridge

Google Earth Pro V 7.3.1.4507. Florianópolis, Catarina S, Brasil 27º35’41.52"S 48º32’53.59"O, altitude 63.86km. Available at: http://earth.google.com Last accessed 8th June 2020

Gotelli NJ, McCabe DJ (2002) Species co-occurrence: a meta‐analysis of JM Diamond’s assembly rules model. Ecology 83:2091–2096. https://doi.org/10.1890/0012-9658(2002)083[2091:SCOAMA]2.0.CO;2

Klein RM (1969) Árvores Nativas Da ilha de Santa Catarina. INSULA Revista de Botânica, Florianopolis

Marzluff JM, Bowman R, Donnelly R (2001) A historical perspective on urban bird research: trends, terms, and approaches. In: Marzluff JM, Bowman R, Donnelly R (eds) Avian ecology and conservation in an urbanizing world. Springer, Boston, pp 1–19

Smit W (2021) Urbanization in the Global South. Oxf Res Encyclopedia Global Public Health. https://doi.org/10.1093/acrefore/9780190632366.013.251

Tittler R, Fahrig L, Villard MA (2006) Evidence of large-scale source–sink dynamics and long‐distance dispersal among wood thrush populations. Ecology 87:3029–3036. https://doi.org/10.1890/0012-9658(2006)87[3029:EOLSDA]2.0.CO;2